Carbo - hydrate. Glucose is a common carbohydrate that will show up again and again as we discuss cell chemistry: its formula is C6H12O6. Table sugar, sucrose, is two single sugars bound together: a disaccharide simple sugar. Sugars can be anything from a single sugar molecule up to several bound together.
The two sides of the DNA molecule are Deoxyribose and phosphate these two molecules are what make up the two sides of DNA.
DNA is a long, stringy molecule. The salt that you added in step one helps it stick together. So what you see are clumps of tangled DNA molecules! DNA normally stays dissolved in water, but when salty DNA comes in contact with alcohol it becomes undissolved.